Akademik Veri Yönetim Sistemi
5th International Symposium on Dam Safety, İstanbul, Türkiye, 27 Ekim - 01 Kasım 2018, cilt.2, ss.811-821
The improvement in design
technologies has enhanced the use of different fill materials in construction
of the embankment dams. Rockfill is one of the most preferred fill material for
embankment dam. Also, use of different fill material such as sand-gravel has
been preferred in recent years. Previous studies on concrete faced sand-gravel
fill dam (CFSGD), results of the laboratory experiments and in-situ testing
analysis display that using sand-gravel as a fill material is not only
cost-effective but also safe and provides high quality natural construction
material. In this study, settlement of Karacasu Dam, which is the first
concrete faced sand-gravel fill dam in Turkey, is examined for “end of
construction” and “reservoir impoundment” loading conditions. Deformations are
determined by computing two dimensional finite element analyses. Hardening soil
model is utilized to obtain non-linear, stress dependent and inelastic behavior
of the sand-gravel fill material. Deformations which are calculated by finite
element analyses, are compared with the data observed by General Directorate of
State Hydraulic Works (DSİ) for both end of the construction and reservoir
impoundment periods. The comparison of the results indicates that calculated
deformations are generally compatible with the observed ones.